Here's a thread from last year with contact info for someone who can help distribute gifts and school supplies:

//ambergriscaye.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=4;t=007162

And another more recent one:

//ambergriscaye.com/message/ultimatebb.php?ubb=get_topic;f=4;t=007808#000002

You can also ask the staff at your hotel for suggestions on how to distribute the goods. I'm sure some will have school-age kids and know how to contact those in need. And if nothing else works out for you, just go to the park and hand them out!